Improvement in machines for making pump-chains



3' Sheets-Sheet 1.

J. ADT. Machine for Making Pump-Chains. No. 206,995.

& m W a. J U A I 1 1 a 1| 0 n r m N. PETERS; F'HOTO-UTHQGRAPH 3SheetsSheet. 2.

. ADT

I J I Machine for Making Pump-Chains.

Patented Aug. 13,1878.

%1 77: a rat N, PETERS, PHOTO-LITHOGNAPHER. WASHINGTON. D. C.

J. ADT." Machine' for Making Pump-Chains.

No. 206,995. Patented Aug. I3, 1878.

UNITED STATES PATENT OFFICE.

JOHN ADT, OF NEW HAVEN,GONNEGT[GUT.

IMPROVEMENT IN MACHINES FOR MAKING PUMP-CHAINS.

Specification forming part of Letters Patent No. 206,995, dated August13, 1878; application filed April 19, 1878.

To all whom it may concem:

Be it known that I, JOHN 'AD'I, of New Haven, in' the county of NewHaven and State of Connecticut, have invented a new Improvement inMachines for Making Pump- Ohains; andIdo hereby declare the following,when taken in connection with the accompanying drawings and the lettersof reference marked thereon, to be a full, clear, and exact descriptionof the same, which said drawings constitute part of this specification,and represent, in-

Figure l, a plan or top view; Fig. 2, a front view; Fig. 3, an end view;Figs. 4, 5, i3, 7, 8, 9, &c., detached parts for illustrating theconstruction of the machine.

This invention relates to an improvement in machines formaking chainsuch as used in that class of pumps for drawing water commonly calledchain-pumps, but is applicable to making other classes of chain in whichone end of the link is bent at substantially right angles to the planeof the other end; and the invention consists in the construction andcombination of parts as hereinafter described, and more particularlyrecited in the claims.-

A is the bed or frame of the machine, on which the operative mechanismis arranged; B, the driving-shaft, arranged at the rear of the machine,and so as to revolvefreely in bearings B, power being applied thereto inthe usual manner for applying power to such machines.

At the front of the machine. the device for feeding the wire from whichthe chain is to be made is arranged, and consists of two rollers,

a, one above the other, and to which constant end of which bears uponthe box, and the,

other, actuated by a cam, D on the drivingshaft. The cam D acts upon thelever so as to force it to press upon the roll during the time the feedis required; hence the wirelying between the rolls will, at such times,be drawn into the machine, and, when the pressure is off, will be leftfree. The duration of this movement is according to the lcngth of thewire required for a single link. The wire passes through a stationarytube, 11, thence through a] guide, E, which has a horizontal open slot,corresponding to the diameter of the wire, openiu g toward the front ofthe machine. This slotted guide is attached to and moves forward andback with a slide, F, the said slide actuated by a ca1n, F, on thedriving shaft. The edge of the guidenext the tube (1 runs in closeproximity to the tube, and when it is tn its rear position, as in Fig.1, the wire fed in passes through the slot in the said guide, and then,when the guide moves forward, the rear of the slot strikes the wire and,in conjunction with the adjacent end of the tube (7, cuts-oft therequired length. The purpose of this slot will be more fully hereinafterdescribed. To the same slide F a stop, 0, is arranged, against which theend of j, the wire strikes as it is fed into the machine and insures thestoppage of the feed at the required time. The said step is adjusted,relatively to the position of the cutting device, so that the distancebetween the stop and cutting device is equal to the length of the blankrequiredsay, as seen iuFig. 5.

These parts are illustrated on a larger scale in Fig. 4. 7

Immediately after the wire has been thus fed in, and, as seen in Fig. 4,a former, f, is

raised by means of a cam, G, and connections underneath the machine, asseen in Fig.3, and at a position relative to the wire, as seen in Fig. 9,then the slide F continues its forward movement. On this slide two jawsor benders, H H, hinged respectively to the rear at h It, and so as toopen or close in a horizontal plane, are forced toward each other insuch hori zontal plane, respectively, by levers H H hung on the bed ath, independent of the slide F, and so that the said slide with thebenders H H will move back and forth without moving the said levers H H,and each actuated by its own cam H so that at the proper time they willpress toward each other at the forward endagainst the headers H H andclose them, or allow the benders H H to open by a spring or otherwise,as indicated in broken lines, Fig. 1. As the slide F moves forward,therefore, the benders H'H strike the wire blank each side of the formerf, bending the wire around it, as seen in broken lines, Fig. 4. Thelength of the wire on the side where the guide E is arranged is thelonger end, the other end only being suffieient to form the first bend,and as clearly seen in Fi 4. To close the wire around the former andgive it the required shape, the benders have a cavity, 1, in their face,which will allow it to close around the former in its forward position,as seen in Fig. 4, and thus close the wire together and shape the end,as seen in Fig. 6.

The object of the horizontal slot in the guide E will now be seen byreference to Fig-11. It is essential that the end of the wire that lieswithin the slot should be carried forward in a horizontal plane, and asit cannot turn from that plane until it passes from the slot, and as itcannot pass from the slot until the benders have taken sufficient holdupon it to prevent its turning, the slotted guide therefore serves toinsure the proper position of the blank after the first bend.

To makethe second bend, a horizontal former, I, is employerhwhich indiameter corresponds to the former f. 0n the under side of this formerthere is a lug, I projecting parallel with the former I, as seen in Fig.2, and after the first bend is completed, as before described, theformer I is moved into position over the wire by a cam, 1 acting througha lever, 1 and so that the former passes above the wire andthe lug Ibelow it, as seen in Fig. 9. When it has arrived at this position arotary movement is given to the former by means of a toothed raek Iworkin in a )inion l on' the shaft of the former, which brings the lug Iup against the wire, carrying the outer end up over and down onto thebody of the wire, as seen in broken lines, Fig. 9, leaving the bend in avertical plane, as seen in Fig. 7that is, so that the under side is inline with the plane of the previously bent end. As the stop 0 would comein contact with the shaft of the former if not removed, the stop is hungto the slide F, as seen in Fig. 12, toward the rear,

and on its forward end is a stud working in a slot, 2', in the frame.This slot inclines down-, ward, so that as the said stop moves forwardit will be forced downward by the slot, and raised again as it returns.

Having performed the work of bending, the former l retreats, also theformer f drops, leaving the bent wire in the grasp of the benders H H,which retreat, carrying the bent wire with them and as they approachtheir rear movement, a final bend is given by a bender, L, arranged inthe end of a lever, L which is hung on the slide F, as at L The rear endof the lever rides up an incline, L forcing the forward end down andbringing the bender L upon the end of the link, so as to bend itdownward, as seen in Fig. 10, thus bringing the eye at that end of thelink central with the other end, and as seen in Fig.8. This completesthe link, and leaves the open part of the forward end of the link in theline of the incoming wire, and so that the next wire will pass directlythrough that end of the link, and the end of the second be made asbefore described for the first, and thus unite the two, and so on witheach successive link, the benders H H opening so soon as the enteringwire engages the last link, so as to secure it.

The general method of bending as hereinbefore described is old, andknown as the Kellogg & Atwood patent,'November 12, 1850, No. 7,768, andit is upon this improvements are made, some of the advantages of whichare the operating of the benders by independent levers, which are inthemselves hung upon the bed while the benders are moving forwardand'backward. This enables the benders to be hung far back, very nearthe operating- 'cams, and so that the are on which the benders move willbe upon a radius very much larger than can be done in the Kellogg andAtwood machine, while the power through the levers I1 H is applied totheir forward ends, and the fulcrum of these levers, forward near theends, produces the same effect of power asif the levers H H were thebenders, as in the Kellogg and Atwood machine. Also, the horizontalguide, through which the wire passes, and which insures, its being bentin the horizontal plane; also, the stop made movable, and so as to dropdown out of the way by means of the forward movement of the slide towhich it is hung; also, the last bender L. which is made to operate bymeans of the movement of the slide, it being hung thereto, and operatedthrough a stationary cam or incline on the bed.

I claim 1. In a machine for making chain, the combination of the benderswith the stop e, the said stop hinged to the slide which carries thebenders, and in connection with an incline or cam-shaped stationarygroove, so as to fall and rise respectively by the forward and rearmovement of the slide which carries the benders, and substantially asdescribed.

2. The two benders H H, hinged to the slide, and so as to move forwardand back with it, combined with their respective levers, pivoteddirectly to the frame, and operating to close and permit the opening ofthe benders, and without longitudinal movement of the said levers,substantially as described.

3. The combination of the benders H H and former f with the former I andthe bender L,

the latter hung upon the slide, and so as to.

move forward and back with it, and a stationary cam to depress thebender L near therear movement of the slide, substantially as and forthe purpose described.

JOHN ADT.

\Vitnesses J OHN E. EARLE,

H. A. KrrsoN.

